Shares in semiconductor wafer manufacturer and supplier IQE plc (IQE) have offered a volatile ride sinceI tipped them on my Nifty Fifty website at a 28.5p offer price in December – hitting 36.5p in January and February before falling back, particularly following some (what look misguided) competition concerns to commence the current month at just 18p. However, they have since recovered strongly and have nudged further higher today to 26.75p-27.25p on the back of a bullish update. They are still cheap.